Sprint hasn't had a cloud storage service to counter offerings from AT&T and Verizon, but it's catching up quickly through a new deal with Pogoplug. The partnership makes it easier for Sprint customers to grab the Pogoplug app, giving them a fast track to 5GB of free online storage. They also won't have to jump through hoops if they need more space -- they can now pay for Pogoplug's $5 unlimited plan through their phone bills. The offer won't matter to Sprint fans who already rely on othercloudservices, but it should help newcomers who don't know where to begin.